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| author | Michael Neuling <mikey@neuling.org> | 2013-05-06 11:32:40 (GMT) |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2013-06-20 06:55:13 (GMT) |
| commit | 70a54a4faec72ee9d12b9c4dfa27bc241deb79a6 (patch) | |
| tree | fbe06b1485d4241e8e9b4019163c3ca546171a64 /arch/powerpc/lib | |
| parent | b9ef7d6b11c120cc402a76013062061bbe0fbaad (diff) | |
| download | linux-fsl-qoriq-70a54a4faec72ee9d12b9c4dfa27bc241deb79a6.tar.xz | |
powerpc: Fix single step emulation of 32bit overflowed branches
Check truncate_if_32bit() on final write to nip.
Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/lib')
| -rw-r--r-- | arch/powerpc/lib/sstep.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/lib/sstep.c b/arch/powerpc/lib/sstep.c index e15c521..99c7fc1 100644 --- a/arch/powerpc/lib/sstep.c +++ b/arch/powerpc/lib/sstep.c @@ -580,7 +580,7 @@ int __kprobes emulate_step(struct pt_regs *regs, unsigned int instr) if (instr & 1) regs->link = regs->nip; if (branch_taken(instr, regs)) - regs->nip = imm; + regs->nip = truncate_if_32bit(regs->msr, imm); return 1; #ifdef CONFIG_PPC64 case 17: /* sc */ |